package ran.ding.springmvc;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration.Dynamic;

import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;

public class WebInitalizer implements WebApplicationInitializer{

	@Override  
	public void onStartup(ServletContext servletContext) throws ServletException {
		AnnotationConfigWebApplicationContext ctx=new AnnotationConfigWebApplicationContext();
		ctx.register(MyMvcConfig.class);
		ctx.setServletContext(servletContext);
		Dynamic servlet = servletContext.addServlet("dispatcher", new DispatcherServlet(ctx));
		servlet.addMapping("/");
		servlet.setLoadOnStartup(1);
		servlet.setAsyncSupported(true);//开启异步方法支持    Servlet+异步实现服务器推送
	}

}
